2 layers225 × 63.5 mm
2 layers289.8 × 99.2 mm
Lard61
beulard/lard61A custom 60% ansi keyboard PCB.
- Size
- 289.8 × 99.2 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 157
- Nets
- 116
- Pads
- 599
- Tracks, vias
- 863, 56
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 May 2024
- Updated
- 5 Jun 2024
Overview
Lard61 is an open-source printed circuit board by beulard, from the beulard/lard61 repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 289.8 × 99.2 mm with 157 parts on 116 nets, routed with 863 tracks and 56 vias.
It is built around the RP2040, W25Q32JVSSIQ and ABM8-272-T3, with the KH-TYPE-C-16P among its other parts. Its parts include 62 diodes, 61 switches, 16 capacitors, 8 resistors and 3 ICs. It belongs with the RP2040 boards of this library.
Main components
4
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q32JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 133MHz 1uA 2.7V~3.6V 20 Years 32Mbit 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
ABM8-272-T3
SMD3225-4P-40℃~+85℃ 10pF 12MHz 50Ω SMD crystal oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
KH-TYPE-C-16P
SMD-40℃~+85℃ 1 10,000 cycles 16P 30V 3A 7.81mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSkinghelmUSB Connectors
README
README.mdlard61
A custom 60% ansi keyboard PCB.
- RP2040
- 4MB flash
- 12MHz crystal
- USB-C
- full n-key rollover
- a single LED
Parts
157| Qty | Value | Footprint | References |
|---|---|---|---|
| 61 | D | Diode_SMD:D_SOD-323 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +45 |
| 46 | DNP | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW10, SW11, SW12, SW13, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24, SW25 +30 |
| 10 | 100n | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4, C5, C6, C7, C8, C10, C13, C15 |
| 7 | DNP | Button_Switch_Keyboard:SW_Cherry_MX_1.25u_PCB | SW54, SW55, SW56, SW58, SW59, SW60, SW61 |
| 3 | MountingHole | MountingHole:MountingHole_2.5mm | H1, H2, H3 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C9, C14 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C11, C12 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R4 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C1, C16 |
| 2 | 27.4 | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R3, R5 |
| 2 | DNP | Button_Switch_Keyboard:SW_Cherry_MX_1.50u_PCB | SW15, SW28 |
| 2 | DNP | Button_Switch_Keyboard:SW_Cherry_MX_2.25u_PCB | SW41, SW42 |
| 1 | 470 | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | ABM8-272-T3 | Crystal:Crystal_SMD_Abracon_ABM8G-4Pin_3.2x2.5mm | Y2 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | DNP | Button_Switch_Keyboard:SW_Cherry_MX_1.75u_PCB | SW29 |
| 1 | DNP | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | DNP | Button_Switch_Keyboard:SW_Cherry_MX_6.25u_PCB | SW57 |
| 1 | DNP | Button_Switch_Keyboard:SW_Cherry_MX_2.00u_PCB | SW14 |
| 1 | DNP | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J5 |
| 1 | DNP | Button_Switch_Keyboard:SW_Cherry_MX_2.75u_PCB | SW53 |
| 1 | KH-TYPE-C-16P | KH-TYPE-C-16P:KINGHELM_KH-TYPE-C-16P | J2 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D62 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U4 |
| 1 | W25Q32JVSS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U3 |
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Questions
How big is the Lard61 PCB?
It measures 289.8 × 99.2 mm and has 2 copper layers, 1 mm thick.
What parts does the Lard61 use?
157 parts, built around the RP2040, W25Q32JVSSIQ, ABM8-272-T3 and KH-TYPE-C-16P. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Lard61 KiCad files?
From the beulard/lard61 repository on GitHub, at the commit this page was made from: the board is kb.kicad_pcb and its schematic kb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lard61 design in my own project?
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).